| 1. | The bust was about 14 cm high and made of greywacke.
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| 2. | These are a group of sandstones defined as feldspathic greywacke.
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| 3. | The majority of the rocks are weakly metamorphosed coarse greywacke.
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| 4. | Stratigraphically, the greywacke zone can be up to thick.
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| 5. | The Torlesse Greywacke has undergone metamorphism and been transformed into Haast Schist.
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| 6. | The Crimson Creek Formation consists of greywacke with tholeiitic basalt.
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| 7. | Tiritiri Matangi Island is a rugged island composed of greywacke.
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| 8. | The Hunua Ranges are a good example of greywacke rock.
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| 9. | A walk south from the beach gives good access to the greywacke.
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| 10. | Greywacke is abundant in the middle unit and dominates the upper unit.
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